Material for flexible wearing-surfaces.



PATENTBD MAR. 12, 1907.

.J. J. VOORHEES. MATERIAL FOR FLEXIBLE WEARING SURFAGES. APPLIATIONyFILED AUG. 25. 1905.

(WW1/maak o SO Fig. 1.

The material cons1sts,essent1ally,of a ce- Wearing-Surfaces,

JOHN J. VOORHEEVQ'I JERSEY CITY, NEW JERSEY.

MATERIL" Fol-i FLrA-:XlBLE wEAnlNG-SURFAGES.

Specification of Letters Patent.

Patented March 12,1907.

Application filed August 25,1905. Serial No. 275.756.

To all whom it may concern: l f Be it known that I, JOHN J. VooRHEEs, acitizen of the United States, residing in Jersey City, county of Hudson,and State of New Jersey, have invented certain new and usefulImprovements inMaterial for Flexible of which the following is a full,clear, and exact specification.

My invention relates ,to certain new and useful improvements incomposition materials, and, while it is adapted for use in various waysit will be found especially valuable in the manufacture ofconveyor-belts, vehicle-tires, i and other structures havingwearing-surfaces where flexibility and resistance to wear are desired.

In the drawings I have shown my invention as applied to aconveyer-belt'such as are now largely used for moving various products-fsu ch as coal,ore, crushed rock, and the like-ffrom onepoint to another, and for thispurpose I have found it very valuable.

As will be readily understood, the friction which occurs when a heavybody, such as ore, falls from a place of rest upon the moving belt isvery great and very destructive to the wearing-s1rrfacel,A At the sametime the belt must possess suflicientilexibility to readily follow thedrums upon which it turns; and it is the object of my invention toproduce a material which will have the necessary ilexibility and yet onewhiclnwill resist the wear and tear to the highest degree. Various efforts have heretofore been made to produce a composition structurehaving these desirable qualities, and several attempts have been made toutilize metal sections of various kinds to receive the Wear inconnection with material possessing the required flexibility. All ofthese attempts, however, have been more or less unsuccessful by reasonof the dificulty of combining metal and flexible material so as toproduce a desirable and eHicient structure; and my inventionconsists inso disoosing and arranging the parts and designing theirproportions asto` obtain` this necessary adhesion.

In the drawings illustrating one form of my inventiomFigure 1 is a topView of the belt, and Fig. 2 a sec ion taken on lines 2 2 of inenting`medium 1,-in which is embedded cloth is completely saturated with. andemu layers of cloth fabric 2. The

' bedded in the cementing medium which septo employ several layersrunning longitudinally of the belt and to locate them near the lower orpulley surface thereof. In the upper part of the belt-that is, near itsupper for wearing surface-I dispose metallic studs having comparativelyshort Shanks of small diameter and large flat heads and arrange Y'themperpendicularly to the'strcture of the of the layers of fabric and theopposite ends or Shanks being situated adjacent to the upwearing-surface when the structure is put to use.

In Fig. 2 the upper layer and therstuds are shown entirely surroundedand embedded in the cementino medium l. The cementing medium whichIrefer to use-is rubber, and when this is used the studs are embeddedtherein previous to vulcanization, so as to be vulcanized in place; butany other suitable material may be used which performs the necessaryfunctions.

` The studs should be disposed close enough together to practically formthe wearing-sur face, and it is necessary that the studs have comaratively large heads and smally short shan 's, so that the. lateral ortip ing tendency which is produced by the all of the heavy ore u on themoving belt be entirely resisted. T di'lliculties in constructing'composition `fabrics, as the natural adhesion of the unlikesubproviding the greatest possible contacting` surface between the unhkesubstances that this tendency may be overcome.

In using my improved material for the manufacture of vehicle-tires theside of said the tire, and that designated as the upper" or wearingsurface will bethe outer surface or tread of the tire.

It is evident that many slight modiiica-r tions may be made in myinvention Without de artirnJV from the'spirit thereof; but

hat I claim, and desire to secure by Let ters Patent, is-

terial for belting body of cementm c material, strengthening materialembedded in said cementing mater arates one layer from another, and Iprefer belt, the heads being held firmly beneath one per surface, wherethey will form part of the i 's has been one of the greatest 'I .9ostances is more or less slight, and it is only by material referred toabove as the lower or pulley surface will be the inner surface of y roo`1. As a new article of manufacture, a. ma and the like comprising-a IIOrial, and a plurality of metallic studs having short, small shanks, andlarge, vflat heads embedded in the cementingjr medium, the shank of saidstud being adapted te form part of the. Wearing-surface of the fabric,and the flat head being secured beneath the strengthenino fabric andadjacent thereto, so as to be held securely thereby, substantially asdescribed.

2. As a new article of manufacture, a material for bclting and the likecomprising a body of cenienting medium,A a pluralitgT of layers ofstrengthening fabric embedded in said cementing` u'xaterial, and aplurality of metallic studs having short, small Shanks, and large, flatheads embedded in the cementing medium, the shank of said stud beingadapted 'lo form part' of the ,yezninggsurface of the a'rie, and thei'lat head being secured beneath the one er more layers of thestrengthening Yfabric :i` d adjacent thereto, so as to be held securelythereby, substantially as described.

3. vAs a new article of manufacture, a material for belting and the likecomprisinga body of cementing medium, a plurality of layers ofstrengthening fabric embedded in said cenienting material, and aplurality of metallic studs having short, small Shanks, and large, flatheads, the shank of said stud being adapted to form part of the wearingsurface of the fabric, and the fiat head being secured firmly betweentwo adjacent layers of said strengthening fabric, so as to beheldsecurely thereby7 substantially described.

In testimony whereof I have hereunto set my hand in the presence of twosulmcriliirig witnesses.

JOHN J. VOORHEES.

Witnesses:

` ADoLrn F. DINsE, A. C. Fiscnnn.

